wiper transmission arm bushing

Yep, you need the plastic cup style like this, and I got mine in a multi pack of different styles with two of those in it for a few bucks at Autozone on the help wall.
Do yourself a favor, poke a pinhole in the back of the cup and put a little grease in it before you pop it on there.
If you use too much grease you need to press it down on the pin till the extra comes out the pinhole so the little ridge inside the bushing seats in that slot cut around the pin.